本文用自然灾害系统理论、灾害风险评估原理和GIS技术，构建了以干旱致灾因子、成灾环境、承灾体和防灾减灾能力为区划因子的综合干旱灾害风险评估模型，将旱灾的自然属性和社会属性相结合，得到以乡镇为单元的泾阳县干旱灾害风险区划图。结果显示：泾阳县东部龙泉乡、永乐镇、崇文乡、高庄镇东部、三渠镇南部为干旱灾害高风险区，白王镇、口镇、王桥镇为干旱灾害次低及低风险区，中部大部及其余地区则为中等及次高风险区。%In this paper, comprehensive drought disaster risk evaluation model is established by using the natural disaster system theory, disaster risk evaluation theory and GIS technology, and using drought disaster-inducing factors, disaster-causing environment, hazard-affected body and disaster prevention and mitigation capabilities as the factors for regionalization, and combined with the natural attribute and social attribute of drought, it gets to the drought disaster risk zoning map of Jingyang county taking township as a unit. The result shows that the following areas are drought disaster high risk area: Longquan township, Yongle township, Chongwen township, east of Gaozhuang township, north of Sanqu township; the following areas are secondary-low drought disaster risk area: Baiwang township, Kou township, Wangqiao township;middle area and other place are medium and secondary high drought disaster risk area.
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